.system_log
{
	background:url('../../images/backend/module/system_log.png') no-repeat;
}
.user_log
{
	background:url('../../images/backend/module/user_log.png') no-repeat;
}
.admin
{
	background:url('../../images/backend/module/admin.png') no-repeat;
}
.user
{
	background:url('../../images/backend/module/user.png') no-repeat;
}
.authority
{
	background:url('../../images/backend/module/authority.png') no-repeat;
}
.setting
{
	background:url('../../images/backend/module/setting.png') no-repeat;
}
